EP 2487807 A1 20120815 - Method for increasing quality of signals received by a destination device
Title (en)
Method for increasing quality of signals received by a destination device
Title (de)
Verfahren zur Steigerung der Qualität von Signalen, die von einer Zielvorrichtung empfangen werden
Title (fr)
Procédé pour augmenter la qualité de signaux reçus par un dispositif de destination
Publication
Application
Priority
EP 11154042 A 20110210
Abstract (en)
A method for determining a configuration of a wireless telecommunications network, the configuration aiming at increasing a quality of signals received by a destination device of the wireless telecommunications network, the signals resulting from a plurality of complex modulation symbols transmitted on a same resource by respective source devices of the wireless telecommunications network, is such that it comprises the following steps of: obtaining an information identifying source devices for which a relay device of the wireless telecommunications network has to apply a pre-coding to respective complex modulation symbols or for which the relay device has to apply a pre-coding to respective estimates of said complex modulation symbols; obtaining a first channel matrix representing a transmission channel between the source devices and the destination device and a second channel matrix representing a transmission channel between the relay device and the destination device; determining a pre-coding matrix aiming at being used by the relay device for applying the pre-coding to be able to transmit complex modulation symbols, on the same resource as the complex modulation symbols transmitted by the source devices, in order to increase the quality of signals received by the destination device. The pre-coding matrix is determined on the basis of the obtained information identifying source devices, of the first and second channel matrices and of a transmission power constraint applicable to the relay device.
IPC 8 full level
H04B 7/02 (2006.01); H04B 7/04 (2006.01); H04B 7/14 (2006.01)
CPC (source: EP)
H04B 7/024 (2013.01); H04B 7/026 (2013.01); H04B 7/0452 (2013.01); H04B 7/0465 (2013.01); H04B 7/14 (2013.01)
Citation (search report)
- [XYI] RAPHAEL ROLNY ET AL: "Distributed gain matrix optimization in non-regenerative MIMO relay networks", SIGNALS, SYSTEMS AND COMPUTERS, 2009 CONFERENCE RECORD OF THE FORTY-THIRD ASILOMAR CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 1 November 2009 (2009-11-01), pages 1503 - 1507, XP031679626, ISBN: 978-1-4244-5825-7
- [Y] MOCO A ET AL: "Performance Evaluation of Virtual MIMO Schemes for the UL OFDMA Based Systems", WIRELESS AND MOBILE COMMUNICATIONS, 2008. ICWMC '08. THE FOURTH INTERNATIONAL CONFERENCE ON, IEEE, PISCATAWAY, NJ, USA, 27 July 2008 (2008-07-27), pages 71 - 76, XP031299555, ISBN: 978-0-7695-3274-5
- [YA] HUAWEI: "Spatial Multiplexing of Type-2 L1 and L2 Relays", 3GPP DRAFT; R1-091802 SPATIAL MULTIPLEXING OF TYPE-2 L1 AND L2 RELAYS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. San Francisco, USA; 20090428, 28 April 2009 (2009-04-28), XP050339319
- [YA] JINGON JOUNG ET AL: "Design of half and full-duplex relay systems based on the MMSE formulation", STATISTICAL SIGNAL PROCESSING, 2009. SSP '09. IEEE/SP 15TH WORKSHOP ON, IEEE, PISCATAWAY, NJ, USA, 31 August 2009 (2009-08-31), pages 281 - 284, XP031541092, ISBN: 978-1-4244-2709-3
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2487807 A1 20120815; EP 2487807 B1 20160511; JP 2012170057 A 20120906; JP 5937366 B2 20160622
DOCDB simple family (application)
EP 11154042 A 20110210; JP 2012012976 A 20120125